body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    height: 100vh;
}

.container {
    display: flex;
    width: 100%;
}

.sidebar {
    width: 250px;
    background-color: #f4f4f4;
    padding: 10px;
    border-right: 1px solid #ddd;
}

.main {
    flex: 1;
    padding: 20px;
}

.settings {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

#history-list {
    list-style-type: none;
    padding: 0;
}

#history-list li {
    cursor: pointer;
    padding: 5px;
    border-bottom: 1px solid #ddd;
}

#history-list li:hover {
    background-color: #ddd;
}

#chat-window {
    height: 70vh;
    overflow-y: auto;
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
}

#user-input {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
}